Soyuz family

Soyuz STB

RetiredRussiaProgress Rocket Space CenterSpec: STB/Fregat

The 2.1b version adds an upgraded engine (RD-0124) with improved performance to the second stage. First launch took place from Plesetsk Cosmodrome Site 43 on 26 July 2008 with a classified military payload. The 2.1b/ST version is sometimes called Soyuz ST-B.

Flights flown19
Success rate94.7%18/19
Payload to LEO8,200kg
Maiden flight2011-10-21
Peak year20143 flights

Soyuz STB is built by Progress Rocket Space Center of Russia. Company background, funding, contracts and news for this operator are tracked on Space Index. It first flew on 21 October 2011 and last flew on 10 February 2022.

Flight record

19 records
94.7% success rate18 of 19 flown · 1 failed
2011peak 2014 · 3 flights2022
First flight2011-10-21
Latest flight2022-02-10
Failures1
Consecutive successes11
Fastest turnaround35d 19h

Payload

Per mission profile
Low Earth orbit8,200kg
Sun-synchronous orbit4,900kg
Geostationary transfer orbit3,250kg

Vehicle

STB/Fregat spec
Stages3
Length46.3m
Diameter2.95m
Launch mass312t
Maiden flight2011-10-21
ReusableNo

Variant lineage

2 configurations

Each configuration of Soyuz STB is tracked separately upstream. The specifications above describe Soyuz STB Fregat only: the canonical configuration, chosen as the active one, or the most-flown where none is active. They are not a blend across the family. The flight record below covers every Soyuz STB flight.

ConfigurationLL2 launchesLEO kgMaidenStatus
Soyuz STB Fregat148,2002011-10-21Retired
Soyuz STB Fregat-MT58,2002012-10-12Retired

Pads used

2 pads

Orbits delivered

5 orbits
Medium Earth Orbit13Polar Orbit2Sun-Synchronous Orbit2Geostationary Transfer Orbit1Sun-Earth L21

Launch history

19 launches
DateMissionPadOrbitOutcome
2022-02-10Soyuz STB/Fregat | OneWeb 13Soyuz Launch ComplexPolar OrbitSuccess
2021-12-05Soyuz STB/Fregat | Galileo L11 (FOC FM23-FM24)Soyuz Launch ComplexMedium Earth OrbitSuccess
2019-12-18Soyuz STB/Fregat | CSG-1, CHEOPS, & othersSoyuz Launch ComplexSun-Synchronous OrbitSuccess
2019-04-04Soyuz STB/Fregat | O3b FM17-20Soyuz Launch ComplexMedium Earth OrbitSuccess
2019-02-27Soyuz STB/Fregat | OneWeb 1 (F6)Soyuz Launch ComplexPolar OrbitSuccess
2018-11-07Soyuz STB/Fregat-MT | MetOp-CSoyuz Launch ComplexSun-Synchronous OrbitSuccess
2018-03-09Soyuz STB/Fregat | O3b FM13-16Soyuz Launch ComplexMedium Earth OrbitSuccess
2017-01-28Soyuz STB/Fregat-MT | Hispasat 36W-1 (Hispasat AG1)Ariane Launch Area 3Geostationary Transfer OrbitSuccess
2016-05-24Soyuz STB/Fregat | Galileo L7 (FOC FM10-FM11)Soyuz Launch ComplexMedium Earth OrbitSuccess
2015-12-17Soyuz STB/Fregat | Galileo L6 (FOC FM08-FM09)Soyuz Launch ComplexMedium Earth OrbitSuccess
2015-09-11Soyuz STB/Fregat | Galileo L5 (FOC FM05-FM06)Soyuz Launch ComplexMedium Earth OrbitSuccess
2015-03-27Soyuz STB/Fregat | Galileo L4 (FOC FM03-FM04)Soyuz Launch ComplexMedium Earth OrbitSuccess
2014-12-18Soyuz STB/Fregat | O3b FM9-FM12Soyuz Launch ComplexMedium Earth OrbitSuccess
2014-08-22Soyuz STB/Fregat | Galileo L3 (FOC FM01-FM02)Soyuz Launch ComplexMedium Earth OrbitFailure
2014-07-10Soyuz STB/Fregat | O3b FM3, FM6-FM8Soyuz Launch ComplexMedium Earth OrbitSuccess
2013-12-19Soyuz STB/Fregat-MT | GaiaSoyuz Launch ComplexSun-Earth L2Success
2013-06-25Soyuz STB/Fregat-MT | O3b FM1, FM2, FM4, FM5Soyuz Launch ComplexMedium Earth OrbitSuccess
2012-10-12Soyuz STB/Fregat-MT | Galileo L2 (IOV FM03-FM04)Soyuz Launch ComplexMedium Earth OrbitSuccess
2011-10-21Soyuz STB/Fregat | Galileo L1 (IOV FM01-FM02)Soyuz Launch ComplexMedium Earth OrbitSuccess

Specifications from Launch Library 2 by The Space Devs, launch records from Space Index. Derived figures are computed here; see sources and method.

Further reading: Wikipedia